Log all statistics to Log::Any (at Info level in the CHI::Stats category), then clear statistics from memory. There is one log message for each distinct triplet of root class, cache label, and namespace. Each log message contains the string "CHI stats:" followed by a JSON encoded hash of statistics. e.g.

Lines with the same root class, cache label, and namespace are summed together. Non-stats lines are ignored. The parser will ignore anything on the line before the "CHI stats:" string, e.g. a timestamp.

Each parameter to this method may be a filename or a reference to an open filehandle.

absent_misses - Number of gets that failed due to item not being in the cache

compute_time_ms - Total time spent computing missed results in compute, in ms (divide by number of computes to get average). i.e. the amount of time spent in the code reference passed as the third argument to compute().